Even of this is true (and I'm extremely skeptical), this would be a problem for such a very small amount of the population. The article talks about differences in life expectancy but doesn't state which groups died of what. They throw in some garbage about marathon runners getting scarred enlarged hearts (I have yet to see a marathon runner present with this in my clinical practice). I would never, absent of other circumstances, advise a patient to limit their cardio to 30 minutes if they wanted to do more and are capable of such.

Doom MD:Even of this is true (and I'm extremely skeptical), this would be a problem for such a very small amount of the population. The article talks about differences in life expectancy but doesn't state which groups died of what. They throw in some garbage about marathon runners getting scarred enlarged hearts (I have yet to see a marathon runner present with this in my clinical practice). I would never, absent of other circumstances, advise a patient to limit their cardio to 30 minutes if they wanted to do more and are capable of such.

The only people I ever saw present with cardiomyopathy in this way seemed to be ex-NFL folks who were waaay larger than a normal human and had quit exercising when they retired. A decade or two of creating a ginormous, think walled heart to pump in a ginormous body. The enlarged heart then just goes boggy when they age and don't try to maintain.

BronyMedic:BigLuca: drtfa, but my interesting factoid for the day ... Every species on Earth has roughly (very roughly) the same number of heartbeats in their lifetime -- 1 billion. Link Link

So the average hummingbird has the same number of heart beats in its life as the blue whale. Kinda cool

At an average heart rate of 70, and assuming no variability (your vagus nerve has been severed, and you're taking beta blockers), 1 billion beats is a little under 3 years of contractions.

You fail at math. It's more like 30 years.

365*24*60*60= 3M and change. So one beat per second for 30 years gives us 9.5 hundred million beats. Even tacking on an extra ten per minute, average doesn't really change it all that much.

Not to mention that the 1 billion beats thing is an approximation based on lifespan in the wild. If you take animals into the confines of safety and treat them like humans, with no real threats and good medicine, they also exceed the billion beats. It's a lot easier to sleep well and eat properly when there's no food shortages and nothing's trying to eat you at night.

doglover:BronyMedic: BigLuca: drtfa, but my interesting factoid for the day ... Every species on Earth has roughly (very roughly) the same number of heartbeats in their lifetime -- 1 billion. Link Link

So the average hummingbird has the same number of heart beats in its life as the blue whale. Kinda cool

At an average heart rate of 70, and assuming no variability (your vagus nerve has been severed, and you're taking beta blockers), 1 billion beats is a little under 3 years of contractions.

You fail at math. It's more like 30 years.

365*24*60*60= 3M and change. So one beat per second for 30 years gives us 9.5 hundred million beats. Even tacking on an extra ten per minute, average doesn't really change it all that much.

Not to mention that the 1 billion beats thing is an approximation based on lifespan in the wild. If you take animals into the confines of safety and treat them like humans, with no real threats and good medicine, they also exceed the billion beats. It's a lot easier to sleep well and eat properly when there's no food shortages and nothing's trying to eat you at night.

The awesomeness of Google Calculator gives me 27.1617861917 years, because I'm lazy.

I always thought it was strange that exercise was supposed to make you strong.

Driving a car doesn't make it stronger. It wears it out!

What's curious here is dogs. They can sleep like 22 hours a day and then be told it's playtime and bolt around at amazing speeds for an hour or two. WHY IS THAT?? Laziest lovable farks around, somehow in tip-top shape.

Oznog:I always thought it was strange that exercise was supposed to make you strong.

Driving a car doesn't make it stronger. It wears it out!

What's curious here is dogs. They can sleep like 22 hours a day and then be told it's playtime and bolt around at amazing speeds for an hour or two. WHY IS THAT?? Laziest lovable farks around, somehow in tip-top shape.

Oznog:I always thought it was strange that exercise was supposed to make you strong.

Driving a car doesn't make it stronger. It wears it out!

What's curious here is dogs. They can sleep like 22 hours a day and then be told it's playtime and bolt around at amazing speeds for an hour or two. WHY IS THAT?? Laziest lovable farks around, somehow in tip-top shape.

Your dogs are very different from my dogs.

5-10 minutes of intense activity, they are farking done.

20-30 minutes of moderate activity, ditto.

/ Then again, my Corgi's torso is taller than his legs.// And the other one's a Pomeranian, so not big./// Running around the living room and up some stairs is like doing some hardcore parkour shiat from these dogs' perspectives.

BafflerMeal:Doom MD: Even of this is true (and I'm extremely skeptical), this would be a problem for such a very small amount of the population. The article talks about differences in life expectancy but doesn't state which groups died of what. They throw in some garbage about marathon runners getting scarred enlarged hearts (I have yet to see a marathon runner present with this in my clinical practice). I would never, absent of other circumstances, advise a patient to limit their cardio to 30 minutes if they wanted to do more and are capable of such.

The only people I ever saw present with cardiomyopathy in this way seemed to be ex-NFL folks who were waaay larger than a normal human and had quit exercising when they retired. A decade or two of creating a ginormous, think walled heart to pump in a ginormous body. The enlarged heart then just goes boggy when they age and don't try to maintain.

Normal people? Never saw anything like this.

NFL players abuse their bodies in all sorts of terrible ways. I don't know specifically about your patients of course, but my understanding (having seen it when I played in University) is that nearly all people who make it that far in such a physically abusive and highly competitive career are taking things in doses that no sane doctor would ever recommend. All sorts of pain killers, steroids, and who knows what else... they self medicate like crazy, that might be a possible explanation for the heart issues of NFL players in general.